Adds login ability, error handling, and logging (#1)

Reviewed-on: #1
Co-authored-by: aarbit <aarbit@gmail.com>
Co-committed-by: aarbit <aarbit@gmail.com>

src/main/kotlin/net/halfbinary/scavengerhuntapi/controller/SignupController.kt

@@ -12,12 +12,7 @@ import org.springframework.web.bind.annotation.RestController
 class SignupController(private val signupService: SignupService) {
     @PostMapping("/signup")
     fun hunterSignup(@RequestBody body: HunterSignupRequest): ResponseEntity<Any> {
-        try {
-            signupService.createNewHunter(body.toDomain())
-            return ResponseEntity.ok().build()
-        } catch (e: RuntimeException) {
-            return ResponseEntity.badRequest().body(e.message)
-        }
-
+        signupService.createNewHunter(body.toDomain())
+        return ResponseEntity.ok().build()
     }
 }